Energy issues have dominated the EU's political agenda for a long time. When Jean-Claude Juncker took over as president of the European Commission, one of his priorities was creating an energy union. Today this union will be debated with Commission Vice President Maroš Šefčovič. Ahead of the debate we spoke to former EP President Jerzy Buzek, a Polish member of the EPP group who is now the chair of the EP's energy committee. about the energy union and the role Parliament should play. (Read more: Buzek: "Energy union can help to boost economic growth and jobs" )